Hydrogen Fuel Maker

We've all seen the "make your car run on water" websites that look like (and probably are) scams. The concept is real, though, I'm just dubious about the get-rich-quick-style websites that promote the "kits" to ad this to your car.

Here's a good demonstration of how a simple fuel cell works:

I'm not sure who this guy is, but if he's actually from "hho4all.com" he needs to have his site looked at. GoDaddy says the site is "under construction."